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PL-GPC 220 User Manual
7
Maintenance
Testing Vapor Sensors
Oven Vapor Sensor Test
1
Heat the oven to 40 °C in IDLE or RUN mode with a pump flow rate of
0.5 mL/min.
2
Open the solvent module lid and lift the end of the solvent return tube just
out of the liquid so that you can see the solvent dripping into the bottle.
3
Check the vapour sensor threshold is set to 5.0 mL/min (in the oven
configuration window)
4
Set the instrument to STANDBY mode (click
OK
to confirm).
5
Open the outer and inner oven lids and place the paper on the floor of the
oven near the RI,
far away from the spiral heater and fan
6
Squirt 5.0 mL of acetone onto the paper and immediately close both lids.
7
Set the instrument to IDLE mode.
After a short period the oven module alarm will sound and a vapor error
notification will appear in the Control software.
Parts required
Description
Absorbent paper (crumpled into a loose ball)
Acetone
Syringe
Preparations
Switch ON the PL-GPC 220 if necessary and set it to IDLE mode with the oven temperature set to
40 °C.
